Clock Options: UX improvements

  Add a Preference Group for options specific to the notification
  clock. Move color options above notification specific options.

Change-Id: I35ecf6e3160448efe6fa39b25f8b1dbb448e80a7
Signed-off-by: KhasMek <Boushh@gmail.com>
Merge "Clock Options: UX improvements" into jb-mr1